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  • Dalitz plot analysis of \(B_s^0 \rightarrow \bar{D}^0 K^- \pi^+\) decays
    collaboration, LHCb; Alves, A A; Andreotti, M; Andrews, J E; Baesso, C; Barsuk, S; Belogurov, S; Bondar, N; Borghi, S; Brambach, T; Brett, D; Britton, T; Brown, H; Bursche, A; Calvi, M; S -F Cheung; Contu, A; Cowan, G A; De Paula, L; Donleavy, S; Easo, S; Elsasser, Ch; Farinelli, C; Farley, N; Farry, S; Fontana, M; Frank, M; Furfaro, E; Gavrilov, G; Gianì, S; Graziani, G; Grecu, A; Gushchin, E; Harrison, J; Heijne, V; Henry, L; John, M; Jones, C R; Kelsey, M; Klaver, S; Kochebina, O; Kozlinskiy, A; Kreps, M; Lambert, R W; J van Leerdam; Lefrançois, J; Leo, S; Leverington, B; Lindner, R; Lionetto, F; Maev, O; Mapelli, A; Matev, R; Moggi, N; Morawski, P; Mordà, A; Morello, M J; Müller, K; Nasteva, I; Neufeld, N; Nguyen, A D; Niess, V; Novoselov, A; Orlandea, M; Oyanguren, A; Papanestis, A; Pearce, A; Playfer, S; Poluektov, A; Popov, A; Pritchard, A; Rademacker, J H; Rakotomiaramanana, B; Raniuk, I; Rihl, M; Robbe, P; P Rodriguez Perez; P Ruiz Valls; Satta, A; Schiller, M; Serra, N; Shcheglov, Y; Sirendi, M; Sokoloff, M D; Souza, D; Souza De Paula, B; Stagni, F; Stenyakin, O; Stroili, R; Szczypka, P; Szilard, D; Teklishyn, M; Topp-Joergensen, S; Tourneur, S; Volyanskyy, D; C Vo\ss; Voss, H; Wilson, F F; Wyllie, K; Zhang, L

    arXiv.org, 10/2014
    Paper

    The resonant substructure of \(B_s^0 \rightarrow \bar{D}^0 K^- \pi^+\) decays is studied with the Dalitz plot analysis technique. The study is based on a data sample corresponding to an integrated luminosity of \(3.0\,{\rm fb}^{-1}\) of \(pp\) collision data recorded by LHCb. A structure at \(m(\bar{D}^0 K^-) \approx 2.86 {\rm GeV}/c^2\) is found to be an admixture of spin-1 and spin-3 resonances. The masses and widths of these states and of the \(D^*_{s2}(2573)^-\) meson are measured, as are the complex amplitudes and fit fractions for all the \(\bar{D}^0 K^-\) and \(K^-\pi^+\) components included in the amplitude model. In addition, the \(D^*_{s2}(2573)^-\) resonance is confirmed to be spin-2.

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